Take a look at this approach:
http://204.108.4.16/d-tpp/0611/05402LD.PDF
It is a LOC that is alligned with runway 27R, but is NOT considered straight in due to a high MDA. If the GRIGG FM is available, MDH is roughly 1150; without the FM, MDH is roughly 2300! One MUST decend below MDA somewhere prior to turning final to land on 27R (runway most often favored due to wind).
Consider a catagory 2 aircraft flying at 120 kts, max bank angle 30 degreees, and max VSI 1000 fps. To descend from 2300 agl takes at least 2.3 minutes and nearly 5 nm. Counting back from touchdown zone 5 mn and staying within 1.5 miles of the runway (circling protected area Cat 2) one must leve MDA somewhere around crosswind. Even at MDH of 1150, one must start down roughly on downwind abeam touchdown zone.